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Question:

why did greyhound buses only have a single tire on the rear axle?

why did greyhound buses only have a single tire on the rear axle?

Answer:

The use of a single tire on the one (non-driving) axle is to save weight and reduce tire costs. It's a non-driving axle. (In the industry it is called either a tag axle or a pusher axle depending on where it is placed in relationship to the axle that has driving power supplied to it.)
May 28, 2018

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